ENGLISH 简体中文 日本語 한국어  

MAX5450, MAX5451, MAX5452, MAX5453, MAX5454, MAX5455
Dual, 256-Tap, Up/Down Interface, Digital Potentiometers

Industry's Smallest Dual 256-Tap Digital Potentiometer


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Description
FULL DATA SHEET (PDF, 492kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


The MAX5450—MAX5455 are a family of dual digital potentiometers that perform the same function as a mechanical potentiometer or variable resistor. The MAX5451/MAX5453/MAX5455 have two 3-terminal potentiometers and the MAX5450/MAX5452/MAX5454 have two 2-terminal variable resistors. The MAX5450—MAX5455 operate from a +2.7V to +5.5V single-supply voltage and use an ultra-low supply current of 0.1µA. These devices consist of two fixed resistors each with 256 digitally-controlled wiper contacts. The convenient power-on reset (POR) sets the wiper to midscale position at power-up and the easy-to-use up/down interface allows glitchless switching between resistor taps. Six inputs control the 14-pin MAX5451/MAX5453/MAX5455 potentiometers. Four inputs control the 10-pin MAX5450/MAX5452/MAX5454 variable resistors.

The MAX5450—MAX5455 are ideal for applications requiring digitally-controlled resistors. Three resistance values are available: 10kΩ, 50kΩ, and 100kΩ. An end-to-end resistor temperature coefficient of 35ppm/°C and a ratiometric temperature coefficient of 5ppm/°C make the MAX5450—MAX5455 excellent choices for adjustable gain circuit requiring low-temperature drift.

The MAX5450—MAX5455 are available in 10-pin µMAX® and 14-pin TSSOP packages. Each device is guaranteed over the extended—industrial temperature range (-40°C to +85°C).

Key Features   Applications/Uses
  • Small-Footprint Packages
    • 10-Pin µMAX (MAX5450/MAX5452/MAX5454)
    • 14-Pin TSSOP (MAX5451/MAX5453/MAX5455)
  • 256-Tap Positions
  • Independent Up/Down Potentiometer Controls (MAX5451/MAX5453/MAX5455)
  • Ultra-Low 0.1µA Supply Current
  • +2.7V to +5.5V Single-Supply Operation
  • Low 35ppm/°C End-to-End Temperature Coefficient
  • Power-On Reset Sets Wiper to Midscale (Position 127)
  • Glitchless Switching Between the Resistor Taps
  • 10kΩ, 50kΩ, 100kΩ Resistance Values

 
  • Adjustable Linear Regulators
  • Adjustable Voltage Reference
  • Impedance Matching
  • LCD Screen Adjustment
  • Low-Drift Programmable-Gain Amplifier (PGA)
  • Mechanical Potentiometer Replacement
  • Programmable Filters, Delays, Time Constants
  • Volume Control

    Key Specifications:   Digital Potentiometers
    Part Number Taper POTs Per Pkg. Control Interface Wiper Memory Number of Steps End-to-End Resistance (kΩ) Res. Tol. (%) Temp. Coeff. (typ)(ppm/°C) Wiper Resistance (typ) (Ω) Max. Idle State Supply Current @5V (µA) Price**
    MAX5450  Linear 2 Up/Down Volatile 256 10 25 35 225 2 $1.25 @ 1k
    MAX5451  10 $1.25 @ 1k
    MAX5452  50 $1.25 @ 1k
    MAX5453  50 $1.25 @ 1k
    MAX5454  100 $1.25 @ 1k
    MAX5455  100 $1.25 @ 1k
    See All Digital Potentiometers (121)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help
  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

     Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-1997; Rev 2; 2006-05-02
    This page last modified: 2007-07-24



          Privacy Policy    Legal Notices

          Copyright © 2008 by Maxim Integrated Products, Dallas Semiconductor